Drive connection for a shoe polisher



Aug. 8, 1950, A, F, BRUDER f 2,518,279

DRIVE CONNECTION FOR A SHOE POLISHER Filed June 50, 1947 mM/famhmmm INVENTOR.

ALBERT F.' BRUDER ATTORNEY.

Patented Aug. 8, 1950 UNITEDll PATENT i OFFICE V` i .Y i*2,518,279 Y DnivCCTI' Fon A. SHOE PoLIsHER l A`-Alb'e'rt FLBruler, Ozone Park, N. Y. y Application-June 3o, 1947,y serial No. '15mn ilfclaims. (o1. 237226) by the electric mO't'OrfsO that the' brush head best suited for a particular'shoe Vpolishing' operatin maybe coupled in pl'ae With little' Yefldl' andin a short period -oftiiie. I h

' A further object of the'invehtiohis' to provide atifushhead Yfor operation by an eie'ctriernctor,

4a, plurality y'offspring gripping lingers and) a motor 'shaft rwith a disc having sl'otsto receive the spring grippingfngers, so that the jbr'ish head may be coupled to' the motor Shaftby' 'a pushing operation, and uricoupled by 'a pulling operation', and when coupled will rotate" in a l direct positive line drive with themotor shaft.

For further comprehension of the invention and of the objects and-'advantages thereof, reference will be had to the following 'description and Vaccornpanying drawing, and to the appended claims in which the various novel features of the invention are more particularly'set forth.

. .In.theaccompanyingfdrawing; for-ming a material part of this disclosure:

Fig. 1 is 4:aisideieievation .of the improved motor drivenshoe polishing unit. v l

Fig; 2' is a top plan view' of the detachable brush head. h

Fig. 3 is a bottom plan view 'of theY driving discV of theVV motor shaft.'

Fig; 4 is a detail vertical` sectional view, taken on line 5;4`o'f'Fig. 1,enlarged, showing the'i'nterlocking action of one of thespring'ngers and' the driving disc". K y

Fig. 5 is a detail perspective View of one'of the spring fingers'. A'

Fig. 6 isa detail'sde vie'wshowing the invention applied to the'fl'e'x'iblelshaftV of an electrical motor- Y Y 2; The disc I2 is also formed with a series of slots I5, which are 'spaced equally from each other and fior'the center of the shaft. v

On the driving disc I2, a brush head IISl is i detachably coupled, by means of spring fingers I'I.v vThe brush headis provided with one spring 'ngerforeach slotIE o'f the driving disc. Each spring 'nger I1" includes a base portion 2| formed aiffo'nev end with a V-shaped' lug portion I8, which is iriterlocked with the brush head H5, and at the other end with a spring arm portion I9, which extends Vfrom the brush head IE, and is formed with alateral spring lo'op '29. The base portion 2'I'j`o'f each spring nger I1' is pierced by a fastener or screw 22", by' whichthe spring nger vis secured to the brush head.

'Ihe'brushv head I6 is also formed with a socket or hole 23, one'for each dowel pin IG of the driving disc i2. These holes are located between the spring fingers. The brush head I5 is coupled to thedriving kdisc I2 by pushing the spring iin-' gers through 'the slots I5 of the driving disc, and:

when this is done the dowel'pins I4 will enter the sockets orholes 23/ of the'brush head;

As thei'oiset 'Spring latchin'g Vloops 20 pass thrg'h' thedriving disc' they willestablish a latoliiiig" a'cth' 'against the inner Side of the driving disc, and thereby couple thev brush head to the driving disc against the pressures which driving disc`l 'I2 develop'to' separate the two when themotor is energized, by means of'theusual service cord 2t and plug-in Vconnector 25.

'The eehtrifu'gal thrust imposed upon the brush head willbe taken Yup by Ythe dowel pins, so that the hrush 'head lwillki'ot tend t'o twist the spring fingers ord'isturb the coupling established with the driving disc;

Y In theV operation of cleaning and 4polishing 'a shoe, i't'is'necessary t'o use first one type of brush, and 'then another,v type' of brush, and nally to apply a high polishing effect with the aid yof another polishing head'.

Fig. 'I shows a set of three brush heads I6, IB?

' and Ib. Eachbrushhead is equipped vwiththree spring fingers Il, and fbrined with three dowel holes, vsti that it' can'be coupled directly to the Each brush head is provided with a different type of bristles or they are saturated with a different polishing preparation. By using one brush head, the initial polishing step may be quickly completed, by using the next brush head the intermediate polishing step may be completed, and by using the third brush head the last polishing step may be completed.

Instead of coupling therbrush head directly to 3 the driving shaft, the driving disc l2 may be attached to a flexible shaft 26, and this driven by means of the electrical motor 2l from any suitable distance for the scene of work.

In either case the brush head may be detached from the driving disc by a simple pulling opera.- tion, which requires neither skill or any important period of time to complete, being affected in a few seconds.

It is to be understood that the pin or set screw I3 may be eliminated When the disc I2 is made integral with the power shaft l l, also that a suitable on and oli switch may be provided for controlling the motor l0.

While I have illustrated and described the preferred embodiments of the invention, it is to be understood that I do not limit myselfY to the precise constructions herein disclosed and the right is reserved to all changes and modifications coming Within the scope of the invention as deiined in the appended claims. Y Having thus described my invention, What I claim as new, and desire to secure by United States Letters Patent is:

l. A drive connection for a shoe polisher, comprising a driven disc formed with spaced holes, dowel pins mounted n one face of said driven disc alternately with said spaced holes, a member having a back portion positioned against the face of said driven disc, said back portion being formed with spaced holes into Which said dowels extend for causing said member to rotate with said driven disc, and spring fingers projecting from said back portion into said spaced holes of said driven disc releasably connecting said member with said driven disc.

2. A drive connection for a shoe polisher, comprising a driven disc formed with spaced holes, dowel pins mounted on one face of said driven disc alternately With said spaced holes, a member having a back portion positioned against the yface of said driven disc, said back portion being formed with spaced holes into which said dowels extend for causing said member to rotate with said driven disc, and spring fingers projecting from said back portion into said spaced holes of said driven disc releasably connecting said member with said driven disc, each spring finger comprising a base portion extended along the face of said back portion, means intermediate said base portion securing said base portion to said back portion, a lug portion formed at one end of said base portion and pressed into said back portion retaining said spring inger from turning about the said intermediate securing means, and a spring arm portion formed at the other end of said base portion for extension through one of said holes of said driven disc.

i3. A drive connection for a shoe polisher, comprising a driven disc formed with spaced holes, dowel pins mounted on one face of said driven disc alternately With said spaced holes, a member having a back portion positioned against the face of said driven disc, said back portion being formed with spaced holes into which said dowels extend for causing said member to rotate with said driven disc, and spring lingers projecting from said back portion into said spaced holes of said driven disc releasably connecting said member with said driven disc, each spring nger comprising a base portion extended along the face of said back portion, means intermediate said base portion securing said base portion to said back portion, a lug portion formed at one end of said base portion and pressed into said back portion retaining said spring nger from turning about the said intermediate securing means, and a spring arm portion formed at the other end of said base portion for extension through one of said holes of said driven disc, said securing means comprising a screw passing through said base Portion intermediate of its ends and into said back portion.

4. A drive connection for a shoe polisher, comprising a driven disc formed With spaced holes, doWel pins mounted on one face of'said driven disc alternately with said spaced holes, a member.having a back portion positioned against the face" of said driven disc, said back portion being formed with spaced holes into which said doWels extend for causing said member to rotate with said driven disc, and spring iingers projecting f from said back portion into said spaced holes of saiddriven disc releasably connecting said mem-A ber with said driven. disc, each spring finger comprising a base portion extended along the face of said back portion, means intermediate said base portion securing said base portion to said back portion, a lug portion formed at one end of said base portion and pressed into said back portion retaining said spring nger from turning about the said intermediate securing means, and a spring arm portion formed at the other end of said base portion for extension through one of said holes of said driven disc, and a spring loop formed near the free end of each of said arm portions for engaging the face of -said driven disc opposite the face against which said member is positioned after said arm portions have been completely extended through the respective holes of said driven disc.

ALBERT F. BRUDER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS YN t 

